49984279 has 4 divisors (see below), whose sum is σ = 50377984. Its totient is φ = 49590576.

The previous prime is 49984273. The next prime is 49984283. The reversal of 49984279 is 97248994.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49984279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49984273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196662 + ... + 196915.

It is an arithmetic number, because the mean of its divisors is an integer number (12594496).

Almost surely, 2^49984279 is an apocalyptic number.

49984279 is a deficient number, since it is larger than the sum of its proper divisors (393705).

49984279 is a wasteful number, since it uses less digits than its factorization.

49984279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393704.

The product of its digits is 1306368, while the sum is 52.

The square root of 49984279 is about 7069.9560819004. The cubic root of 49984279 is about 368.3645347105.

The spelling of 49984279 in words is "forty-nine million, nine hundred eighty-four thousand, two hundred seventy-nine".